superl afflictive; painful.
2. sour ·vt to make cold and unproductive, as soil.
3. sour ·vt to make unhappy, uneasy, or less agreeable.
4. sour ·vt to cause or permit to become harsh or unkindly.
5. sour ·superl cold and unproductive; as, sour land; a sour marsh.
6. sour ·noun a sour or acid substance; whatever produces a painful effect.
7. sour ·superl changed, as by keeping, so as to be acid, rancid, or musty, turned.
8. sour ·vt to macerate, and render fit for plaster or mortar; as, to sour lime for business purposes.
9. sour ·superl having an acid or sharp, biting taste, like vinegar, and the juices of most unripe fruits; acid; tart.
10. sour ·vt to cause to become sour; to cause to turn from sweet to sour; as, exposure to the air sours many substances.
11. sour ·superl disagreeable; unpleasant; hence; cross; crabbed; peevish; morose; as, a man of a sour temper; a sour reply.
12. sour ·vi to become sour; to turn from sweet to sour; as, milk soon sours in hot weather; a kind temper sometimes sours in adversity.